[ars]

If this is true I suspect a human could be trained the same way.

I read once that a radiologist can't always explain what they see in an image that leads them to one diagnosis or another, they say that after seeing many of them they just know.

So I suspect the same could be done for race. This would be a super interesting thing to try with some college students - pay them to train for a few days on images and see how they do.